Spark-arrester.



D, SCHNEIDER. SPARK ARRESTER.

APPLiOATION I'ILED NOV. 15, 1910.

V Elma whoa 171mm; ficimezder Patented July 9, 1912.

I attowmg SHIN COLUMBIA PLANouRAPn c DANIEL SCHNEIDER, 0F SPOKANE,WASHINGTON.

SPARK-ARRESTER.

Specification of Letters Patent.

Patented July 9, 1912.

Application filed November 15, 1910. Serial No. 592,540.

To all whom it may concern Be it known that I, DANIEL SCHNEIDER, acitizen of the United States, residing at Spokane, in the county ofSpokane and State of Washington, have invented new and usefulImprovements in Spark-Arresters, of which the following is aspecification.

This invention relates to spark arresters and the object of theinvention is toso form the smoke box of the locomotive or other enginein such a manner that the sparks and cinders will have to travel acircuitous path from the smoke box to the stack, and are subjected tothe exhaust from the engine.

A still further object of the invention is the provision of a separatecompartment within the smoke chamber which is adapted to receive the wetcinders and which has an attenuated opening leading to the stack whichis guarded so as to prevent direct draft from the flues.

Further objects of the invention will appear as the following specificdescription is read in connection with the accompanying drawing whichforms a part of this application and in which:

Figure 1 is a sectional view of a portion of a locomotive showing theinvention applied thereto. Fig. 2 is a detail section on the line 22 ofFig. 1. Fig. 3 is a detail vertical section on the line 33 of Fig. 1.

Referring more particularly to the drawing 1 represents the locomotiveboiler, 2 the smoke box thereof, and 3 the stack. The smoke box isdivided into separate compartments & and 5 by a partition 6 whichextends horizontally below the stack and then vertically in front of theexhaust tube 7. The exhaust tube has its upper end bent forwardly as at8 so that the exhaust therefrom will be projected through a short fluepipe 9 which extends into the chamber 4 and forms a communicatingelement between the compartments 1 and 5. Projecting outwardly from thewall 6 and above the flue pipe 9 is a baffle plate 10 which is somewhatshorter than the width of the compartment 1 and also somewhat narrowerthan the width of said compartment so as to form channels 11 and 12between the same and the sides of the casing respectively. This platealso coacts with the top 13 to form a channel or flue 14:, which leadsto the stack. The battle plate is carried by the partition 6 andoverhangs the mouth of the flue pipe 9 having its free edges 15 bentdownwardly so as to deflect the smoke and cinders into the compartment 4where the heavier particles will settle and be prevented from passingout of the flue 14 to the stack. The stack which is used in thisinstance is considerably larger than the stacks ordinarily used and ispreferably oblong in shape.

In the operation of the device the smoke and cinders pass out of theboiler flues into the compartment 5 and pass through the flue 9 wherethey are subjected to the exhaust from the exhaust pipe 7 The exhaustpipe 7 is so positioned as to direct the smoke and cinders against theunderside of the baflie plate and the curved outer end thereof tends tothrow them downwardly into the compartment. The heavier particles willremain in the compartment 4 while the lighter constituents rise throughthe ports 11 and 12 and pass out through the flue 14. to the stack.

Having thus described the invention, what is claimed is- The combinationwith an engine boiler having a smoke box and a stack communicatingtherewith, of an angular transverse partition dividing said smoke boxinto forward and rear compartments, and separating the rear compartmentfrom the stack, the rear compartment being in communication with theflues of the boiler, a horizontal flue tube carried by the partition andconnecting said compartments, a deflector plate carried by thepartition, extending horizontally into and having a length and widthless than the length and width of the forward compartment, saiddeflector plate forming with the smoke box an exit flue leading to thestack, and an exhaust tube arranged in the rear compartments and adaptedto direct the exhaust steam from the boiler through the flue tubeagainst the deflector plate, said plate having its free edges bentdownwardly to deflect the heavy particles toward the bottom of thecompartment.

In testimony whereof I aflix my signature in presence of two witnesses.

DANIEL SCHNEIDER.

Witnesses:

LAWRENCE I-I. BROWN, FREDERICK W. DEWART.

Gopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

